cat /etc/issue* /etc/*release 2>/dev/null|grep -qE "debian|ubuntu|Ubuntu"&&OS="Debian"
cat /etc/issue* /etc/*release 2>/dev/null|grep -qE "release|centos|CentOS"&&OS="RedHat"
if [ "$OS" = "RedHat" ]
        then yum -y install vim wget bzip2 unzip rsync psmisc net-tools bind-utils telnet bash-completion
fi
if [ "$OS" = "Debian" ]
        then apt-get -y install vim wget bzip2 unzip rsync psmisc net-tools dnsutils telnet
fi